Swivel rope socket for oil-well-drilling tools



Sept. 4, 1923. 1,467,273.

s. -JAQUES SWIVEL ROPE SOCKET FOR OIL WELL DRILLIELGLS Fixed sept. 1e. 1922 Patented sept. 4, 1923.

UNITED STATES GEORGE JAQUES, 0F CASPER, WYOMING.

SWIVEL ROPE SOCKET FOR OIll'J-I'ELL-DRILLIN'Gv TOOLS.

Application tiled September 16, 1922. Serial N 0.588,682.

To all whom t may concern.'

Be it known that I, GEORGE JAQuns, a citizen of the United States, residing at the city of Casper, county of Natrona, State of Wyoming, have invented certain new and useful Improvements in Swivel Rope Sockets for Oil-lVell-Drilling Tools; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to a simple and eficient forni of swivel rope socket lfor oil well drilling tools, andv has for its object to provide a device of the character indicated which will facilitate the rotation of the socket and the tool carried thereby, by the normal twisting operation of the cable, without longitudinal movement between the swivelled stem or neck and the body of the socket, thereby preventing crystallization of the cable, and undue wear on the parts of the device. To these ends, the invention comprises a body portion including a box or tool receiving socket at its lowerend, an externally threaded boss or stub on its upper end with la race section formed in the upper face of this boss, a hollow rope receiving Stem or neck having an annular shoulder or enlargement on its lower end provided with a companion race section on its lower face, and a hollow shell surrounding the neck and provided with an interior shoulder engaging the shoulder on the neck and confining the neck against longitudinal movement when said shell is screwed home on the boss of the body portion, suitable means being provided for locking the shell to the body portion.

The invention is illustrated in the accompanying drawings, in which Fig. 1 is an elevation of the socket;

Fig. 2 is a sectional elevation thereof;

Fig. 3 is a horizontal section on line 3-3 of Fig. 2;

Fig. 4: is a similar section on line 4-4 of Fig. 2;

Fig. 5 is a corresponding view showing the locking device in retracted relation.

Referring to the drawings, 1 indicates the body portion of the socket, which is provided at its lower end with the usual box or tapered threaded recess 2 to receive the corresponding-ly threaded ends of the tools. The upper end of the body portion 1 is provided with a boss or stub 3 of reduced diameter terminating at its base in a squared shoulder 4,

and having its cylindrical surface threaded, asat. 5. ..Formed in the upper face of the b o'ss 3 is an annular race section 6.

.A Clo-operating with the body portion 1 is a Vshell or cap 10, preferably of the same external diameter as the body portion 1, and having the lowercportionk of its bore threaded to engage the threads 5 on the boss 3, the lower marginal edge of the cap formingl a tight joint with the shoulder l on the body portion when the `shell is screwed home.`

Above the screw-threaded section of the shell, there is provided a smooth-walled chamber 12 terminating in an annular shoulder 13, beyond which extends the reduced portion 11 of the bore.

Co-operatingwith the body'portion 1 and the shell 10 is a swivel neck 15 provided with a longitudinal bore 16 to receive the 4end of the drill rope or cable, which is secured in place by any of the well known means em- E ployed for this purpose. The lower endv of the neck is provided with an annular shoulder lor enlargement y17 whichv fits Asnugly within the chamber12 of the shell and coof theshell, asy clearly illustrated in Fig. 2. The lower face of the neck is provided with a race section 18 which co-operates with 'the race section 6 on the boss 3, to conne a seoperates with theJ shoulder 13 on the interior ries of anti-'friction bans 19, which facilitate the rotation 1of the 'socket dueto the twisting of the cable. It will be lparticularly noted that the engagement between the shoulder 13 of the shell and the annular shoulder 17 of the neck prevents any longitudinal move-- ment between the neck and the body portion, without, however, interfering with the free rotation of the body portion and the tool carried thereby, when the cable untwists, and also prevents crystallization of the cable, which is an inherent evil in swivel sockets in which relative motion between the neck and body portion is permitted.

In order to preserve the proper relation of the parts as described, suitable means are provided for locking the shell to the body portion.` as follows:

A radial bore 2O terminating in a reduced bore 21 is formed in the boss 3. The outer end of the opening 20 is screw-threaded to receive an externally threaded sleeve 22 having a transverse slot 22 in its rear end. Slidably mounted in the bore 21 and the sleeve 22 is a locking bolt having an enlarged forward end 23 and a reduced rear section 2st, with an interposedi shoulder 25 having twosides thereof cut away to permit the shoulder to pass within the slot 22 of the sleeve 22, when the pin is turned to bring the narrow portion of the shoulder 25 in alignmenty with the slot 22. A helical spring 26 surrounds the pin and tends to force the same outward, so that its forward end will engage an opening 27 in the wall of the shell l0, when the latter' has been screwed home, the relation of theparts in locked position being illustrated in Figs. 2 and 4. lVhen'it is desired to release the locking pin and permit the shell to be unscrewed from the body portion l, a screw-driver or other appropriate tool is engaged with a slot in the forward end of the pin, and the latter is forced inwardly against the tension of spring 26, and when they shoulder 25 has passed beyond the inner end of the sleeve 22, the pin isdgiven a quarter turn, which causes the vshoulder 25 Vto engage the rear edge of the sleeve 22 and hold the pin in its retracted relation. When it is desired to again lock the shell to the body portion, after the shell has been screwed home, and the opening 27 is in alignment with the locking` pin, 'the screw-driver or key is again engaged with Ithe slot `in the head 23 of the pin and said .pin is given a quarter turn to bring the reduced portions 25 of the shoulder 25 into alignment with the cross slot 22 in the sleeve 221and permit the bolt to beprojected by the spring 26 into the opening 27 in the shell.

It .will be observed that the device as a whole is simple in construction, compact in arrangement, capable of ready adjustment and repair, and presents no openings for the ingress of foreign material to impair the cooperation of the various elements.

lVha-t I claim is:

l. A swivel tool socket comprising a body portion having a screw-threaded boss on its upper end, and a race section in the upper i'ace of said boss; a hollow cable receiving vneck having anannular shoulder on its lower end and a companion race section on its lower fa'ce'; anti-friction members between said race sections; and a shell having a longitudinal bore lincluding an upper section embracing the neck, a shouldered enlargement. engaging the annular shoulder on the neck, and a threaded lower section engaging the threaded boss on the body portion.

2. A swivel tool socket comprising a body 'portion having a screw-'threaded boss on its upper end, and a 'race section in the upper face of said boss; a 4liollowcable receiving neck having an annular shoulder on its lower end and a companion race section on 'its lower "face, anti-friction members between 'said race sections; a shell `having a longitudinal bore including an upper section embracing the neck, a shouldered enlargement engaging the annular shoulder on the neck, and a threaded lower section engaging the threaded boss on the body portion; and

Vmeans for locking the shell to the body por GEORGE JACQUES. 

